HomeMy WebLinkAbout02 41 19 - Selective Structure DemolitionBEARDSLEY DESIGN ASSOCIATES
CORNELL NCP SELECTIVE STRUCTURE DEMOLITION
STANDARD SPECIFICATIONS 02 41 19 PAGE 1 OF 6
NOVEMBER 2, 2012
SECTION 024119 SELECTIVE STRUCTURE DEMOLITION
PART 1 GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and
Supplementary Conditions and other Division01 Gene ral Requirements
Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes the following:
1. Demolition and removal of selected portions of building or structure.
2. Salvage of existing items to be reused or recycled.
1.3 DEFINITIONS
A. Remove: Detach items from existing construction and legally dispose of them
offsite, unless indicated to be removed and salvag ed or removed and
reinstalled.
B. Remove and Salvage: Detach items from existing construction and deliver
them to Owner ready for reuse.
C. Remove and Reinstall: Detach items from existing construction, prepare
them for reuse, and reinstall them where indicated.
D. Existing to Remain: Existing items of construction that are not to be removed
and that are not otherwise indicated to be removed, removed and salvaged,
or removed and reinstalled.
1.4 SUBMITTALS
A. Schedule of Selective Demolition Activities: Indicate the following:
1. Detailed sequence of selective demolition and removal work, with starting
and ending dates for each activity. Ensure Owner's building manager's
onsite operations are uninterrupted.
2. Interruption of utility services. Indicate how long utility services will be
interrupted.
3. Coordination for shutoff, capping, and continuation of utility services.
4. Use of elevator and stairs.
5. Locations of proposed dust and noisecontrol te mporary partitions and
means of egress.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP SELECTIVE STRUCTURE DEMOLITION
STANDARD SPECIFICATIONS 02 41 19 PAGE 2 OF 6
NOVEMBER 2, 2012
6. Coordination of Owner's continuing occupancy of portions of existing
building and of Owner's partial occupancy of completed Work.
7. Means of protection for items to remain and items in path of waste
removal from building.
1.5 QUALITY ASSURANCE
A. Regulatory Requirements: Comply with governing EPA notification
regulations before beginning selective demolition. Comply with hauling and
disposal regulations of authorities having jurisdiction.
B. Standards: Comply with ANSI A10.6 and NFPA 241.
C. Predemolition Conference: Conduct conference at Project site, Review
methods and procedures related to selective demolition including, but not
limited to, the following:
1. Inspect and discuss condition of construction to be selectively demolished.
2. Review requirements of work performed by other trades that rely on
substrates exposed by selective demolition operations.
3. Review areas where existing construction is to remain and requires
protection.
1.6 PROJECT CONDITIONS
A. Owner will occupy portions of building immediately adjacent to selective
demolition area. Conduct selective demolition so Owner's operations will not
be disrupted.
1. Comply with requirements specified in Division 01 Section "Summary."
B. Notify Architect of discrepancies between existing conditions and Drawings
before proceeding with selective demolition.
C. Hazardous Materials: It is not expected that hazardous materials will be
encountered in the Work.
1. Hazardous materials will be removed by Owner before start of the Work.
2. If materials suspected of containing hazardous materials are encountered,
do not disturb; immediately notify Architect and Owner. Owner will remove
hazardous materials under a separate contract.
D. Hazardous Materials: It is unknown whether hazardous materials will be
encountered in the Work.
1. If materials suspected of containing hazardous materials are encountered,
do not disturb; immediately notify Architect and Owner. Owner will remove
hazardous materials under a separate contract.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP SELECTIVE STRUCTURE DEMOLITION
STANDARD SPECIFICATIONS 02 41 19 PAGE 3 OF 6
NOVEMBER 2, 2012
E. Hazardous Materials: Hazardous materials are present in construction to be
selectively demolished. A report on the presence of hazardous materials is
on file for review and use. Examine report to become aware of locations
where hazardous materials are present.
1. Hazardous material remediation is specified elsewhere in the Contract
Documents.
2. Do not disturb hazardous materials or items suspected of containing
hazardous materials except under procedures specified elsewhere in the
Contract Documents.
F. Storage or sale of removed items or materials onsite is not permitted.
G. Utility Service: Maintain existing utilities indicated to remain in service and
protect them against damage during selective demolition operations.
1. Maintain fireprotection facilities in service d uring selective demolition
operations.
PART 2 PRODUCTS (Not Used)
PART 3 EXECUTION
3.1 EXAMINATION
A. Verify that utilities have been disconnected and capped.
B. Survey existing conditions and correlate with requirements indicated to
determine extent of selective demolition required.
C. When unanticipated mechanical, electrical, or structural elements that conflict
with intended function or design are encountered, investigate and measure
the nature and extent of conflict. Promptly submit a written report to Architect.
3.2 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS
A. Existing Services/Systems: Maintain services/systems indicated to remain
and protect them against damage during selective demolition operations.
1. Comply with requirements for existing services/systems interruptions
specified in Division 01 Section "Summary."
B. Service/System Requirements: Locate, identify, disconnect, and seal or cap
off indicated utility services and mechanical/electrical systems serving areas
to be selectively demolished.
1. Arrange to shut off indicated utilities with utility companies.
2. If services/systems are required to be removed, relocated, or abandoned,
before proceeding with selective demolition provide temporary
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP SELECTIVE STRUCTURE DEMOLITION
STANDARD SPECIFICATIONS 02 41 19 PAGE 4 OF 6
NOVEMBER 2, 2012
services/systems that bypass area of selective demolition and that
maintain continuity of services/systems to other parts of building.
3. Cut off pipe or conduit in walls or partitions to be removed. Cap, valve, or
plug and seal remaining portion of pipe or conduit after bypassing.
a. Where entire wall is to be removed, existing services/systems may be
removed with removal of the wall.
3.3 PREPARATION
A. Site Access and Temporary Controls: Conduct selective demolition and
debrisremoval operations to ensure minimum interfe rence with roads,
streets, walks, walkways, and other adjacent occupied and used facilities.
B. Temporary Facilities: Provide temporary barricades and other protection
products and measures to prevent injury to people and damage to adjacent
buildings, adjacent finishes and utilities/facilities to remain.
1. Provide protection to ensure safe passage of people around selective
demolition area and to and from occupied portions of building.
2. Provide temporary weather protection, during interval between selective
demolition of existing construction on exterior surfaces and new
construction, to prevent water leakage and damage to structure and
interior areas.
3. Protect walls, ceilings, floors, and other existing finish work that are to
remain or that are exposed during selective demolition operations.
4. Provide clean room type walkoff sticky protecti ve floor mats at
entrances/exit to Telecommunications Rooms during demolition,
reconstruction and finishing operations. Mats shall have at least 40 tear
off adhesive sheets and be a minimum of 40” long – to help remove dirt,
dust, grit, and contaminants from soles and wheels on contact.
5. Cover and protect furniture, furnishings, and equipment that have not been
removed.
6. Comply with requirements for temporary enclosures, dust control, heating,
and cooling specified in Division 01, Section 015000 "Temporary
Facilities and Controls."
C. Temporary Shoring: Provide and maintain shoring, bracing, and structural
supports as required to preserve stability and prevent movement, settlement,
or collapse of construction and finishes to remain, and to prevent unexpected
or uncontrolled movement or collapse of construction being demolished.
1. Strengthen or add new supports when required during progress of
selective demolition.
3.4 SELECTIVE DEMOLITION, GENERAL
A. General: Demolish and remove existing construction only to the extent
required by new construction and as indicated. Use methods required to
complete the Work within limitations of governing regulations and as follows:
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP SELECTIVE STRUCTURE DEMOLITION
STANDARD SPECIFICATIONS 02 41 19 PAGE 5 OF 6
NOVEMBER 2, 2012
1. Proceed with selective demolition systematically, from higher to lower
level. Complete selective demolition operations above each floor or tier
before disturbing supporting members on the next lower level.
2. Neatly cut openings and holes plumb, square, and true to dimensions
required. Use cutting methods least likely to damage construction to
remain or adjoining construction. Use hand tools or small power tools
designed for sawing or grinding, not hammering and chopping, to minimize
disturbance of adjacent surfaces. Temporarily cover openings to remain.
3. Cut or drill from the exposed or finished side into concealed surfaces to
avoid marring existing finished surfaces.
4. Do not use cutting torches until work area is cleared of flammable
materials. At concealed spaces, such as duct and pipe interiors, verify
condition and contents of hidden space before starting flamecutting
operations. Maintain fire watch and portable fire suppression devices
during flamecutting operations.
5. Maintain adequate ventilation when using cutting torches.
6. Remove decayed, vermininfested, or otherwise da ngerous or unsuitable
materials and promptly dispose of offsite.
7. Remove structural framing members and lower to ground by method
suitable to avoid free fall and to prevent ground impact or dust generation.
8. Locate selective demolition equipment and remove debris and materials
so as not to impose excessive loads on supporting walls, floors, or
framing.
9. Dispose of demolished items and materials promptly.
B. Removed and Salvaged Items:
1. Clean salvaged items.
2. Pack or crate items after cleaning. Identify contents of containers.
3. Store items in a secure area until delivery to Owner.
4. Transport items to Owner's storage area onsite.
5. Protect items from damage during transport and storage.
C. Removed and Reinstalled Items:
1. Clean and repair items to functional condition adequate for intended
reuse. Paint equipment to match new equipment.
2. Pack or crate items after cleaning and repairing. Identify contents of
containers.
3. Protect items from damage during transport and storage.
4. Reinstall items in locations indicated. Comply with installation
requirements for new materials and equipment. Provide connections,
supports, and miscellaneous materials necessary to make item functional
for use indicated.
D. Existing Items to Remain: Protect construction indicated to remain against
damage and soiling during selective demolition. When permitted by Architect,
items may be removed to a suitable, protected storage location during
selective demolition and cleaned and reinstalled in their original locations after
selective demolition operations are complete.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP SELECTIVE STRUCTURE DEMOLITION
STANDARD SPECIFICATIONS 02 41 19 PAGE 6 OF 6
NOVEMBER 2, 2012
3.5 SELECTIVE DEMOLITION PROCEDURES FOR SPECIFIC MATERIALS
A. Concrete: Demolish in sections. Cut concrete full depth at junctures with
construction to remain and at regular intervals, using powerdriven saw, then
remove concrete between saw cuts.
B. Masonry: Demolish in small sections. Cut masonry at junctures with
construction to remain, using powerdriven saw, the n remove masonry
between saw cuts.
C. Concrete SlabsonGrade: Sawcut perimeter of a rea to be demolished, then
break up and remove.
D. Resilient Floor Coverings: Remove floor coverings and adhesive according to
recommendations in RFCIWP and its Addendum.
1. Remove residual adhesive and prepare substrate for new floor coverings
by one of the methods recommended by RFCI.
E. AirConditioning Equipment: Remove equipment wi thout releasing
refrigerants.
3.6 DISPOSAL OF DEMOLISHED MATERIALS
A. General: Except for items or materials indicated to be reused, salvaged,
reinstalled, or otherwise indicated to remain Owner's property, remove
demolished materials from Project site and legally dispose of them in an EPA
approved landfill.
1. Do not allow demolished materials to accumulate onsite.
2. Remove and transport debris in a manner that will prevent spillage on
adjacent surfaces and areas.
3. Remove debris from elevated portions of building by chute, hoist, or other
device that will convey debris to grade level in a controlled descent.
B. Burning: Do not burn demolished materials.
3.7 CLEANING
Clean adjacent structures and improvements of dust, dirt, and debris caused by
selective demolition operations. Return adjacent areas to condition existing
before selective demolition operations began.
END OF SECTION 024119